biodex ATOMLAB 500, Operation And Service Manual, Page: 164 / 212

value of 37.1) is approximately ±0.05
µ
Ci. For an isotope requiring a calibration value of 500
(for P-32, it is 530), the fluctuation is ±0.5
µ
Ci or more.
Mo-99 Fluctuations:
The Atomlab Dose Calibrator begins averaging display data the moment the Moly Assay screen
is touched. At first the fluctuations will seem relatively high before gradually decreasing, which
is why the Atomlab Dose Calibrator provides the 30-second countdown. The fluctuations are to
be expected and do not require any action on the user’s part.
Unexpected Readings:
If it is suspected that the reading on the activity display is inaccurate, ensure that the
calibration value for the isotope selection key is correct.
Detector Service:
CAUTION: Only qualified service personnel should remove the detector cover.
There is an electrical shock hazard. Components under cover operate at 350
volts. The detector bias supply capacitors require at least two weeks, with
power disconnected, to discharge to less than 50 volts.
ATTENTION: Seul un technicien qualifié doit retirer le couvercle du détecteur. Il
y a un risque de choc électrique. Les composants sous couverture fonctionnent
à 350 volts. Les condensateurs d'alimentation du détecteur de polarisation
nécessitent au moins deux semaines, avec une puissance débranchée, pour se
décharger à moins de 50 volts.